@dti406, I've wondered a few things about the power lines that parallel the Toledo Terminal trackage. It appears that the same contractor built the towers around the whole TT loop! I am not an engineer, but the subtleties in the truss structures are all the same. (There are exceptions: a few towers with that narrow, lattice pole-like structure near Sylvania Ave. -- used for most of the power lines that parallel the Old Road between Vulcan and Central/Reynolds substations, and the HUGE towers used to span the upper Maumee River. Also, right at the I-475 overpass, a non-lattice pole was recently added for a new tap.)
Another commonality is the unique pattern of the insulators: as a 10-year-old I called it "triangle-straight-triangle", where the top and bottom phases have a V-string and the middle, wider out phase has a simple vertical string. Many pictures of the TT with power lines in the background show this pattern, though whenever there's the slightest change in direction, all three phases have a pair of dead-end insulators with jumpers.
In about 1975, I was in elementary school one day and noticed major construction on the power lines that paralleled the TT tracks (we were right across Douglas at Kenwood at the time). They had replaced the "crowning" structures on the power lines with the structure still found today. Was that what you worked on? The A-shaped base sections were untouched. Before the topping structures were replaced (this is not from memory, but from looking at old photographs from the Toledo Library website), the structures were smaller, and all three phases were simple straight strings. There was also only one lightning ground wire at the top, held up by a pointy tip; these can be found along the former Toledo, Angola, and Western tracks west of Holland-Sylvania, but single-circuit on one side only, and they now dead-end at Silica.